Keep Only the Highest Set Bit

Code

#include <stdio.h>
#include <stdint.h>

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    // Your logic here
    int i;
    uint16_t regtemp,regtemp1,op;
    for(i=15; i>=0;i--)
    {
        regtemp = reg & (1<<i);
        regtemp1 = regtemp>>i;
        if (regtemp1){
            op= regtemp;
            break;
        }
        else
        {
            op=0x0000;
        }
        
    }
    return op;
}

int main() {
    uint16_t reg;
    scanf("%hu", &reg);

    uint16_t result = highest_set_bit(reg);
    printf("%hu", result);
    return 0;
}

Solving Approach